Refrigerating device.



@Nrn @TAE irtirnnr omiten.

JNS LAURITZ NILSSON, OF KRISTIANSTAD, SWEDEN.

REFRIGERATING DEVICE.

To all whom 'it may concern:

Beil'` known that lUlt'ixs I,.\'l'i:i'rz Nimaox. a suhjert ot thtl King' o'l'A Sweden and residing' at t Htortoget, l\"i'islian 1tad` in lln` Kingdnm of Sweden. have invented rei'tain new and use/tu] Iniprovenn'utm` in llol'rigijerating' levires, ot whirh the l`ollowing ia a Spet'itifation, ret'trrurt' heinev had therein to the. arromlmnving drawing'.

In order te maintain a low temperature Vfor instanrt in a railroad rar, adapted t'or the transportI olI meat. or gi'tinerally in a rr- 'Irie'erating rhainher. ont` or more rel'rigfi-w ating; meinhers ygenerally Consisting ot a pipes`vatenn t'omhined with one or nore ireremqitaolen is the most ell'ertivl and Cheap-- est, water being raused tu uirrulate throurali the said mrmhrr or niel'nhei-:s and the im rectqitaelp and a nhnulher or rt'rrplailr l'or salti combined with the latter. For usine the said re't'rigerating' method it is however nei-- essaiv to surceasivelv remove dirt` and the like contained in the ice and salt and pasa ing t'rom the IQame, when melting. to the water, an otherwisie the pipes are rapid!)r stopped and the pump1 rausing' the water to rirrulate, is prevented troin operating. liv payingr notzire to theI said prerautionr.` rheap waste salt' and ire ot' less purity ma)r heuaed, tht` refrigeratine; opi-ration lining: thel'elryY cheaper.

ThisI invention relate to arrangements in retrigeralingdevit'es ol the vlaV mentioned ahove, hy mean` of which thtl said objects are gained.

The invention 4also relatl-h4 to means h v which the perrentage ot salt iu tht` water Can hey adjuated.

The rel'i'ie'eratirrey rhainher may he oti any ltype. ln the aerouqmnyineY dra wine' the refrigerating devire is illustrated adapted tn a railroad ear.

Figure l is a longitudinal ser( ion olj a part ot the said railroad (far. Fie'. is a erosv section ofthe irea'ereptarie.

`1 is the refrigeratingr ineuiher consisting of a pipe which in lot-ated in the refrigerating Chamber and through which theliquid circulates,v the Isaid pipe being; zigzag;` IShaped for the providing' of a great. cooling' nurture. 2 is the iee-reeeptzu'le, and 3 the. pump, causing the liquid to circulate. YWhen the refrig eratiing device is provided in a railroad car the. said pump may he actuated hy a motion transmitting;r mechanism connected with one of the shafts of the car, not shown in the Specification of Letters Patent.

Application tiled April 30, 1910.

A atentod Oct.. r. 1.9.1.2.

Serial No. 558.545.

drawing. ln other raw# the pump in driven hv a luotoi'. 'i`ho liquid pannes trom the pump through the piptl rgvslem to tht` ire rereptar'hl l and l'rom the latter through a pIpe -l to tlul pump 2'. The rereptarlr 2 tapers downward 'in order that dirt and llulilzt` may gather in the narrowest hotlom parl, in whit-h a tap hoh` i l'or the aid dirt in provided. An ovei'llow pipe l is provided al a higher level lorminle a sperial pipe system. thruugh whit'h rampes the ,surplux otE liquid formed hv thtl melted if'e. 'l`he pipe il; mentioned ahove extends I'rom a` point in lhal reteptatle 2 lot'att'd atI a level situated suhslanl iallv midway hrtween thtI opening 5 and the .'-:url'are ol' tht` liquid. the heie'hliot whir'h is determined hv the outlet opt-ning ol the piptI Owing' to the Asaid arrange- `ment the light partiy as well as tlnI lit-aviY parl ot' tln` solid dirt artl prevented it'roin pasante' willi the liquid lo the pump, as the 'former tloat on the surl'are olf tht: liquid, whit-h alu n vs is on a level with the outlet opening: ot' the pip(I ti. and the latter sinlnl down to tluhottoin oll thel reeeptarle. )L horizontal part olE the pip(` l is lot-ated in tho ref'eplaf'le, tlnlower side olA the said part living' perlorated. while its top side is lnlperl'm'ated. l`ht` mid part ol` the pipe fl extends outside the rereptarle and is provided with a removahhplug'. rap or the like. Owing' lo the aid arrangements the dirt' is prevented in the most reliahle inanner trom passing trnm the rweptaelo into the pip(l l, and the latter ran easily he rlenned h v means ol' a lone' luu.--l1 introduced into the piptl hv removing thtI rap or plu;v on thtI end thereof. 'lht` ire is a|pporte l hy a gratingl H lorate'd at 4ulmtautiall'v the saine level as the overflow pipi.` t3. ln order that thtI retrie'eratine raparitv ot the liquid esrapingr through the pipe t? may he utilized, the l aid pipe l'orms one or more loops. which arrangement resultin a not i1n'onsiderahle .SavilleT ol iee. An iutern'auliate reunivable straining wall E.) is provitled in the top partl of the receptacle. ',l`he liquid leaving' the pipe l is spread on the said strainer 9 hy the end part 1X of the pipe being;r lorated in the recept-arl@ above the wall t) and perforated. Solid parts are therehj,r separated from the liquid and retained hy the strainer, from which they are removed from time to tina: hy cleaningr the I@trainer The perforated part l ot the pipe l is loca'et'l at one ot the side walls of the receptacle in order to per-- mit the strainer 9 to be lifted out of thel re ceptacle.

Salt is provided in a chamber l forming a compartment of the receptacle 2 or a special receptacle. A branch -pipe 1l, communicatingwith the pipe 1 at a point near the receptacle 2, is connected with the bottom part of the said compartment. The pipe 1 has a cock 12 located between the branch pipe 11 and the receptacle 2, and the branch pipe 11 is provided with a cock 13. A, perforated pipe 14 connects the top part of the compartment or receptacle with the part of the chamber 2 located above the strainer 9 and is also mounted at one of the side walls of the receptacle. A removable strainer is located in the compartment 10, above the salt. By the said arrangements it is possible to control the percentage of salt in the liquid, which is of great importance, be-

cause the liquid is diluted more rapidly or slowly, according as the consumption of the ice is greater or less, and the addition of salt must be greater or less in the same degree, in order that the freezing-point of the liquid, which may be assumed to be -6 centigrade, may be constant. The said control is effected by means of the cocks 1 2 and 13. For obtaining a greater percentage of salt the cock 12 is shut to some extent and the cock 13 is opened correspondingly and vice versa. Giving to the fact that the liquid can pass from the compartment 10 into the chamber 2 only through the strainer 15 located above lthe salt and through the pipe 14; solid dirt, which the salt may contain,iis prevented from passing with the liquid into the chamber 2j I claim as my invention:

1. In a refrigerating device, the combination of a ieirigerating member, an icereceptacle with which the said member is connected, a pump or the like tor causing a liquid to circulate through the said receptacle and member, the said ice-receptacle being provided with an overflow opening for the surplus of liquid produced by the melting ice and also with a tap hole at the bottom of the receptacle for the removal of solid dirt, and a conduit between the rccep# tacle and the pump leading from a level located between the said overflow opening and the tap hole.

2. In a refrigerating device, the combination of a refrigerating member, a receptacle for ice, tapering downward at its bottom, a pump for causing the liquid to circulate through the said member and receptacle, a

conduit connecting the receptacle with thei pump, an overflow pipe, the said conduit eX- tending from a point in the receptacle on a lower level than the said overflow pipe, and a. clean out connection in the narrowest lgottom part of the receptaelefor the removal of solid dirt which may have gathered therein. p

3. In a retrigerat-ing device, the combination of a refrigerating member, a receptacle for ice, and through which member and receptacle a. liquid is caused to pass, an overflow connection in the receptacle for the removal of surplus liquid producedby the melting ice, a chamber in said receptacle adapted to contain salt, a conduit leading from the said refrigerating member and emptying into the said salt receptacle, and means for controlling and regulating the flow of liquid through the said conduit.

4. In a refrigerating device, the combina- K tion with a refrigerating member and a receptacle, through which the liquid circulates, of straining means, through which the liquid passes from the said member to the said receptacle, a chamber pr receptacle for salt, conduit leading from the said member to the said chamber for salt for conveying a part of the liquid thereto, and straining nieans through which the said part of the liquid so diverted from the main circulation is caused to pass before returning to the main body of circulating liquid.

5., In a refrigerating device, the combination of a refrigerating member, a receptacle having compartments adapted respectively to contain ice and salt, means for causing the circulation of a liquid through said refri gerat-ing member and the ice compartment of the said receptacle, and means for passing a liquid in varying quantities through the salt compartment of the said receptacle to control the percentage of salt 1 n the .said liquid circulating through the said refr1gerating member.

In testimonywhereotI I have ailixed my signature in presence of two witnesses.

.Tous Lauiurz NiLssoN.. Witnesses: n A

I'IEDiNG MELINDER, Roisnn'r APELGREN. 

